definition of allergic reaction to medication aafp
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allergic reaction allergic reaction. allergic reaction in Medicine. allergic reaction n. A local or generalized reaction of an organism to internal or external contact with a specific allergen to which the organism has been previously sensitized. Examples from the Web for allergic reaction.
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Side effects Antibiotic allergic reactions. Around 1 person in 15 has an allergic reaction to antibiotics, especially penicillin and cephalosporins. In most cases the allergic reaction is mild to moderate and can take the form of: 1  a raised, itchy skin rash (urticaria, or hives). 2  coughing. 3  wheezing.
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Anaphylaxis Anaphylaxis is a life-threatening type of allergic reaction. Anaphylaxis is a severe, whole-body allergic reaction to a chemical that has become an allergen. An allergen is a substance that can cause an allergic reaction. After being exposed to a substance such as bee sting venom, the person's immune system becomes sensitized to it.
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- An allergic reaction is a dangerous side effect that means that the drug must be stopped immediately and the person literally suffers an allergy to the drug e.g. liver enzymes increasings hence enlarging the liver.
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Effects of Histamine Release Anaphylaxis is a severe allergic reaction that can range from mild to life-threatening with symptoms that include itchy hives; swelling of the lips, tongue, or eyes; throat swelling; nausea and vomiting; and wheezing and difficulty breathing.
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anaphylaxis Anaphylaxis is a type of allergic reaction, in which the immune system responds to otherwise harmless substances from the environment. Unlike other allergic reactions, however, anaphylaxis can kill.
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Introduction A drug allergy is an allergic reaction to a medication. With an allergic reaction, your immune system, which fights infection and disease, reacts to the drug. This reaction can cause symptoms such as rash, fever, and trouble breathing. True drug allergy is not common.
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Allergic Reaction 1 An allergic reaction is the body's way of responding to an invader.. 2  When the body senses a foreign substance, called an antigen, the immune system is triggered.
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- An anaphylactic reaction is an acute systemic hypersensitivity reac-. tion that occurs within seconds or minutes after exposure to certain. foreign substances, such as medications (penicillin, iodinated con-. trast material), and other agents, such as latex, insect stings (bee,
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Allergies Anaphylaxis (anna-fih-LACK-sis) is a severe allergic reaction that can be life-threatening and requires immediate medical attention. It happens fast and may cause death. Symptoms usually involve more than one part of the body, such as the skin or mouth, the lungs, the heart and the gut. Learn more about anaphylaxis.
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adverse drug reaction 32 APPLIED CLINICAL TRIALS actmagazine.com December 2003. adverse drug reaction (ADR). In the. preapproval clinical experience with a new. medicinal product or its new usages, particularly as the therapeutic dose(s) may. not be established: all noxious and. unintended responses to a medicinal.
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Allergic Reaction Allergic Reaction. An allergic reaction occurs when the immune system overreacts to a harmless substance known as an allergen. The immune system protects the body from infections, viruses and diseases.
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Adverse reactions to drugs Reactions that occur only in susceptible subjects. 1  Drug intolerance—A low threshold to the normal pharmacological action of a drug. 2  Drug idiosyncrasy—A genetically determined, qualitatively abnormal reaction to a drug related to a metabolic or enzyme deficiency.
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Drug allergies Drug allergies are a group of symptoms caused by an allergic reaction to a drug (medicine). A drug allergy involves an immune response in the body that produces an allergic reaction to a medicine. The first time you take the medicine, you may have no problems. But, your body's immune system may produce a substance (antibody) against that drug. The next time you take the drug, the antibody may tell your white blood cells to make a chemical called histamine.
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Anaphylaxis Anaphylaxis (an-a-fi-LAK-sis) is a serious, life-threatening allergic reaction. The most common anaphylactic reactions are to foods, insect stings, medications and latex. If you are allergic to a substance, your immune system overreacts to this allergen by releasing chemicals that cause allergy symptoms. Typically, these bothersome symptoms occur in one location of the body. However, some people are susceptible to a much more serious anaphylactic reaction.
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- The terms “drug allergy,” “drug hypersensitivity,” and “drug reaction” are often used interchangeably. Drug reactions encompass all adverse events related to drug administration, regardless of etiology. Drug hypersensitivity is defined as an immune-mediated response to a drug agent in a sensitized patient.
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- Anaphylaxis is the most severe allergic reaction and is potentially life threatening. Anaphylaxis is rare. The vast majority of people will never have an anaphylactic reaction. Common triggers of an anaphylactic reaction include drugs, such as penicillin, insect stings, foods (peanuts, shellfish), X-ray dye, and latex. The symptoms of anaphylaxis may vary and can include hives, tongue swelling, vomiting, and even shock. If someone is at risk, avoidance is the best form of treatment.
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Allergic Reaction 1 Most allergic reactions are minor, such as a rash from poison ivy, mosquito or other bug bites, or sneezing from hay fever. The type of reaction depends on the person's immune system response, which is sometimes unpredictable.  In rare cases, an allergic reaction can be life-threatening (known as anaphylaxis). The Asthma and Allergy Foundation of America (AAFA) estimates that at least one in 50 Americans (1.6%), and as many as one in 20 (5.1%), have had anaphylaxis occur, resulting in an average of 186-225 deaths per year.
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Medications and Drug Allergic Reactions • Allergic drug reactions account for 5 to 10% of all adverse drug reactions. Any drug has the potential to cause an allergic reaction. • Symptoms of adverse drug reactions include cough, nausea, vomiting, diarrhea, and headaches. • Skin reactions (i.e. rashes, itching) are the most common form of allergic drug reaction. • Non-steroidal anti-inflammatory drugs, antibiotics, chemotherapy drugs, monoclonal antibodies, anti-seizure drugs and ACE inhibitors are frequent causes of allergic drug reactions.
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Medications and Drug Allergic Reactions Most allergic reactions occur within hours to two weeks after taking the medication and most people react to medications to which they have been exposed in the past. This process is called sensitization.. However, rashes may develop up to six weeks after starting certain types of medications.
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Allergic Rhinitis Allergic rhinitis, or hay fever, is an allergic response to specific allergens. Pollen is the most common allergen in seasonal allergic rhinitis. These are allergy symptoms that occur with the change of seasons.
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Medication Allergy A less common type of allergic reaction is called serum sickness. This can occur days or even a week after starting a medication, even if you have never been exposed to the medication before. The symptoms of serum sickness include skin rashes, hives, fever and joint pain. In rare instances, a different type of allergic reaction can cause red blood cells to be destroyed.
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Medication Allergy The symptoms from an allergic reaction vary from a mild skin rash to sudden swelling of many body parts with life threatening fall in blood pressure. Most people with a drug allergy have been exposed to that drug or a similar drug before. During the earlier exposure, immune cells formed antibodies against the drug.
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Anaphylaxis Anaphylaxis Overview. Anaphylaxis (an-a-fi-LAK-sis) is a serious, life-threatening allergic reaction. The most common anaphylactic reactions are to foods, insect stings, medications. If you are allergic to a substance, your immune system overreacts to this allergen by releasing chemicals that cause allergy symptoms.